CN207559716U - A kind of stepper motor - Google Patents

Abstract

The utility model discloses a kind of stepper motors, and including outlet box and coil rack, outlet box includes outlet box terminal, and coil rack includes skeleton terminal, and skeleton terminal includes end to end winding portion, middle section and external connection part successively；Outlet box terminal includes external connection part, and connect with external connection part and internal coupling part from plane where external connection part to surrounding that dissipated along, internal coupling part is used to be electrically connected with the external connection part of skeleton terminal, the spacing L1 of the external connection part of outlet box terminal is less than the spacing L2 of the winding portion of skeleton terminal, and the spacing L3 of one end that internal coupling part is connect with the external connection part of skeleton terminal is approximately equal to the spacing L2 of skeleton terminal.The utility model solves the connectivity problem of the stepper motor when cancelling wiring board transition connection, while does not influence the coiling of coil rack.

Description

A kind of stepper motor

Technical field

The utility model is related to a kind of stepper motors, belong to stepper motor technical field.

Background technology

Micro-machine is that the every field such as factory automation, family life automation, office automation are widely applied heavy Basic product is wanted, common micro-machine is divided into leaded motor and without lead motor according to the connection mode difference of lead.Its Middle no lead motor is then there was only connector port on motor, and customer's connecting line port is connect by matched interfaces with motor, such as Disclosed in patent CN103401348B.

When customer's connecting line port needs small terminal, i.e., when the spacing between terminal is smaller, motor connectors port needs Matching, i.e., the spacing between terminal in motor connectors port also wants matching and becomes smaller.Patent document Motor disclosed in CN103401348B, using a butt, twice after equidistant bending with customer's connecting line port match, when need When wanting terminal spacing smaller, the spacing of terminal winding portion is also corresponding smaller.In technique, stator winding enameled wire is wound to Terminal winding portion if terminal spacing is too small, can not cross line during coiling in the spacing of terminal, can not realize coiling, Wu Faman Sufficient customer demand.

As disclosed in CN101924452B patents, in no lead stepper motor connector port, using wiring substrate The bonder terminal on the terminal and connector shell at motor skeleton end is connected, realizes the conducting on circuit.In this way Transition, can realize that transition between the big spacing of motor skeleton terminal and the small spacing of customer's connecting line port terminal connects It connects.But this wiring board connection mode can cause a series of problem：First, what wiring board internal electric connected can freely not draw The problem of generator windings are breaking；Secondly, wiring board uses twice welding sequence, thus may occur to weld rosin joint, and pad takes off It falls, tin sweat(ing) is splashed to inside motor, causes the problems such as stuck；Finally, wiring board welding sequence cost is higher.In addition, using PCB After plate, pcb board is mounted in connector shell so that connector shell radial height becomes larger, when client's use occasion is installed When size is restricted, installation requirement can not be met.

Invention content

Technical problem to be solved in the utility model is：A kind of stepper motor is overcome the deficiencies of the prior art and provide, is solved The certainly connectivity problem of the stepper motor when cancelling wiring board transition connection, while the coiling of coil rack is not influenced.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of stepper motor, including outlet box and Coil rack, the outlet box includes outlet box main body and the outlet box terminal being fixedly connected on outlet box main body, described Coil rack has skeleton terminal, and the outlet box terminal includes external connection part and internal coupling part, the outlet box The internal coupling part of terminal connect with external connection part and along plane where external connection part along its symmetrical centre to Both sides dissipate, and the spacing L1 of the external connection part of outlet box terminal is less than or equal to the spacing L2 of skeleton terminal, the outlet box The internal coupling part of terminal is directly welded to connect with skeleton terminal.

Further, the skeleton terminal includes end to end winding portion, middle section and external connection part successively； The internal coupling part of the outlet box terminal is used to be welded to connect with the external connection part of skeleton terminal, outlet box terminal The spacing L1 of external connection part is less than the spacing L2 of the winding portion of skeleton terminal.

Further, the spacing of the internal coupling part of outlet box terminal is set as：It externally connects with outlet box terminal One end of socket part point connection becomes larger to the one end being connect with skeleton terminal.

Further, coil rack further includes skeleton main body, terminal holding member, the terminal holding member and skeleton main body It is connected, and the terminal holding member consolidates skeleton terminal to realize by the middle section of fixed skeleton terminal It is fixed.

Further, the winding portion of the skeleton terminal is identical with external connection part extending direction.

Further, the internal coupling part of the outlet box terminal and the external connection part of skeleton terminal are welded by wicking The mode connect links together.

Further, the outlet box further includes wire outlet box cover, and the wire outlet box cover, which has, accommodates the internal of outlet box terminal The groove of coupling part, the wire outlet box cover are covered on internal coupling part and are fixedly connected with outlet box main body, described internal Coupling part and the weld of the external connection part of skeleton terminal are located in above-mentioned groove.

Further, the side of the winding portion of the close skeleton terminal of the groove has the isolation for tin sweat(ing) to be isolated Wall.

Further, the dividing wall of the wire outlet box cover is pressed on the middle section of the skeleton terminal.

Further, the winding portion has the sharp of a pushing for one end of coiling relative to the other end of winding portion Angle α.

Further, the outside of the outlet box is B to the distance between motor outer diameter, and motor center is arrived on the outside of outlet box Distance is A, B：Ranging from the 0.25~0.29 of A.

Further, the outside of the outlet box is 4.4mm to the distance between motor outer diameter B, is arrived on the outside of the outlet box The distance A of motor center is 16.4mm.

Further, the upper surface of the outlet box main body is not higher than the upper surface of the coil rack terminal holding member, With the welding of this external connection part for realizing the internal coupling part of the outlet box terminal and skeleton terminal and the skeleton end The tin of warding off of sub- winding portion is carried out at the same time.

Above-mentioned technical proposal is employed, the utility model has following advantageous effect：

1) in outlet box and coil rack connection structure, the utility model eliminates wiring board transition connection, on the one hand The cost of product can be reduced, on the other hand avoids the failure mode of wiring board welding, is reduced because the welding of wiring board plate is drawn The bad problem risen, such as：Copper foil comes off, and pcb board welding comes off, rosin joint etc.；

2) the utility model is used is used for along plane where external connection part to the internal coupling part that surrounding dissipates Welding is matched with the skeleton terminal of coil rack, is connected instead of wiring board transition, disclosure satisfy that the skeleton terminal of coil rack Requirement with larger spacing L2, in order to coiling, wire winding needle can cross line doubling from the gap of skeleton terminal, meanwhile, energy The spacing L1 for enough meeting the external connection part of outlet box terminal is smaller to be suitable for the requirement of the external connection terminals of small spacing；

3) it due to eliminating wiring board transition connection, is directly connected to using outlet box terminal and skeleton terminal, outlet box diameter Reduce to thickness, stepper motor overall radial dimension reduces, and facilitates installation, meets the use demand of client, suitable for smaller space In the range of product use；

4) the utility model also sets up wire outlet box cover on outlet box main body, and a groove, groove one are set on wire outlet box cover The dividing wall of side can block outlet box terminal to be entered inside motor with the tin sweat(ing) generated during skeleton terminal wicking, cause card Extremely, the problems such as noise；In addition, wire outlet box cover pushes down the middle section of skeleton terminal, avoid when terminal plugs, skeleton terminal by Power deforms, and is conducive to improve the integral rigidity of skeleton terminal, prevents from deforming.

Description of the drawings

Fig. 1 is the outlet box of the utility model and the assembly structure figure of coil rack；

Fig. 2 is the outlet box of the utility model and the exploded view of coil rack；

Fig. 3 is the outlet box main body of the utility model and the installation diagram of outlet box terminal；

Fig. 4 is the outlet box main body of the utility model and the front view of outlet box terminal；

Fig. 5 is the outlet box main body of the utility model and the front sectional view of outlet box terminal；

Fig. 6 is the structural perspective of the coil rack of the utility model；

Fig. 7 is the internal structure schematic diagram of the assembling of the outlet box and coil rack of the utility model；

Fig. 8 is the front view of the internal structure of the assembling of the outlet box and coil rack of the utility model；

Fig. 9 is the outlet box of the utility model and state diagram of the coil rack in wicking；

The outlet box and the sectional view after coil rack assembling that Figure 10 is the utility model；

Figure 11 is that the skeleton terminal of the utility model carries out the schematic diagram of loose ends processing；

Figure 12 is the B portions enlarged drawing of Figure 11；

Figure 13 is the installation step figure that the skeleton terminal of the utility model is assemblied on terminal holding member；

Figure 14 is the integrally-built vertical view of the stepper motor of the utility model；

Figure 15 is the integrally-built side view of the stepper motor of the utility model.

Specific embodiment

In order to which the content for making the utility model is easier to be clearly understood, below according to specific embodiment and combine attached Figure, is described in further detail the utility model.

As shown in Fig. 1 to 10, a kind of stepper motor, including outlet box 1 and coil rack 2, the outlet box 1 includes outlet The box main body 1-1 and outlet box terminal 1-3 being fixedly connected on outlet box main body 1-1, the coil rack 2 have skeleton Terminal 2-1, the skeleton terminal 2-1 are including end to end winding portion 2-1-1, middle section 2-1-2 and outside connect successively Socket part divides 2-1-3；The outlet box terminal 1-3 includes external connection part 1-3-1 and connects with external connection part 1-3-1 It is connecing and dissipate internal coupling part 1-3-2, tool along its symmetrical centre to both sides along plane where the 1-3-1 of external connection part Body, internal coupling part 1-3-2 spacing is set as：Its connect with the external connection part (1-3-1) of outlet box terminal one It holds to the one end being connect with skeleton terminal 2-1 and becomes larger.The internal coupling part 1-3-2 is used for skeleton terminal 2-1's External connection part 2-1-3 is welded to connect, and the spacing L1 of the external connection part 1-3-1 of outlet box terminal 1-3 is less than skeleton end The external connection part of the spacing L2, the internal coupling part 1-3-2 and skeleton terminal 2-1 of the winding portion 2-1-1 of sub- 2-1 The spacing L3 of one end of 2-1-3 connections is approximately equal to the spacing L2 of skeleton terminal 2-1.Herein, the spacing of skeleton terminal 2-1 is each A part is L2.

As shown in Fig. 5,7,8, since the internal coupling part 1-3-2 of outlet box terminal 1-3 is dissipated to surrounding, with skeleton end The junction of the external connection part 2-1-3 of sub- 2-1 is in the connection mode being mutually parallel of chiasma type rather than the prior art, Internal coupling part 1-3-2 is easier to tin sticky with external connection part 2-1-3 interconnections during welding, and weld strength is high.

As shown in figure 5, the spacing L1 of the external connection part 1-3-1 of outlet box terminal is small, the winding portion of coil rack The spacing L2 of 2-1-1 is big, passes through the variation spacing realization outlet box terminal of internal coupling part 1-3-2 and being electrically connected for skeleton terminal It connects.

Preferably, the external connecting of the internal coupling part 1-3-2 and skeleton terminal 2-1 of the outlet box terminal 1-3 2-1-3 is divided directly to weld to form electrical connection, the spacing of winding portion of the adjacent welds center spacing not less than skeleton terminal 2-1 L2。

As shown in Fig. 6,10, coil rack 2 includes skeleton main body 2-3, terminal holding member 2-2 and skeleton terminal 2-1, institute It states terminal holding member 2-2 to be connected with skeleton main body 2-3, and the terminal holding member 2-2 passes through fixed skeleton end The middle section 2-1-2 of sub- 2-1 realizes the fixation to skeleton terminal 2-1.

Preferably, the external connecting of the internal coupling part 1-3-2 and skeleton terminal 2-1 of the outlet box terminal 1-3 2-1-3 is divided to link together by way of wicking welding.

Preferably, as shown in Fig. 2,10, the outlet box 1 further includes wire outlet box cover 1-2, and the wire outlet box cover 1-2 has The groove 1-2-1, the wire outlet box cover 1-2 for accommodating the internal coupling part 1-3-2 of outlet box terminal 1-3 cover on internal connecting portion Divide on 1-3-2 and be fixedly connected with outlet box main body 1-1, the outside of the internal coupling part 1-3-2 and skeleton terminal 2-1 connects Socket part divides the weld of 2-1-3 to be located in above-mentioned groove 1-2-1.

Preferably, as shown in Figure 10, the side of the winding portion 2-1-1 of the close skeleton terminal of groove 1-2-1, which has, uses In the dividing wall 1-2-2 of isolation tin sweat(ing), outlet box terminal can be blocked to enter electricity with the tin sweat(ing) generated during skeleton terminal wicking Inside machine, cause it is stuck, the problems such as noise.

Preferably, as shown in Figure 10, the dividing wall 1-2-2 of the wire outlet box cover 1-2 is pressed in the skeleton terminal 2-1 Between on the 2-1-2 of part, avoid when terminal plugs, skeleton terminal stress deformation, be conducive to improve the integral rigidity of skeleton terminal, It prevents from deforming.

As shown in Figure 11,12, the winding portion 2-1-1 is used for one end of coiling relative to the another of winding portion 2-1-1 One end has a sharp angle α pushed.Enameled wire coiling, the reason of because of tension, enameled wire is tight on skeleton face, is transported in circulation Easily cause in the process broken string cause it is bad, as soon as by the end downward bending sharp angle α of winding portion 2-1-1, enameled wire It can relax on skeleton face, play the role of loose ends, it is bad to reduce the complete machine caused by broken string.

In coiling, the winding portion of skeleton terminal is higher than the internal coupling part of outlet box terminal, ensures coil with this It wards off tin and terminal welds the two processes and merges into the same process, all welded by the way of wicking.The end face of outlet box main body Not higher than the terminal holding member of coil rack, the upper surface of the specific outlet box main body 1-1 is not higher than the coil bone The upper surface of 2 terminal holding member 2-2 of frame, prevent and meanwhile wicking weld when, scald plastic support members, moreover, winding portion On have an enameled wire, when welding is more difficult to account for tin, so in wicking, winding portion is first dipped into tin, the time length of welding a bit, weldering It is more preferable to connect effect.

Such as Figure 14,15, the distance between 1 outside of outlet box to motor outer diameter is B, and that B is specially 4.4mm；Outside outlet box The distance of side to motor center is A, and A is specially 16.4mm, and there are one relatively suitable ranges in the present embodiment by B/A：0.25 ~0.29 (containing boundary value).Due to eliminating wiring board transition connection, it is directly connected to, is gone out using outlet box terminal and skeleton terminal Wire box radial thickness reduces, and stepper motor overall radial dimension reduces, and facilitates installation, meets the use demand of client, suitable for more Product in small spatial dimension uses.

The assembly technology of outlet box terminal, including

Distances of the more outlet box terminal 1-3 using spacing as L1 is parallel to motor axis direction and is inserted into outlet box main body 1-1 It is interior, then, along plane where outlet box terminal by the free end of outlet box terminal 1-3 with its symmetrical centre to both sides bending, Internal coupling part is made, in divergent shape, to expand the spacing between outlet box terminal, internally to be connected relative to external connection part The spacing of portions end is L3, and the internal coupling part 1-3-2 is distributed in divergent shape, the spacing of internal coupling part 1-3-2 Expanded outward by the one end being connect with external connection part 1-3-1, until being electrically connected with skeleton terminal 2-1.

Further, the step of skeleton terminal 2-1 assemblings include,

As shown in figure 13, by skeleton terminal 2-1 word orders and to be inserted into coil rack 2 perpendicular to the direction of motor shaft In terminal holding member 2-2, the spacing of skeleton terminal 2-1 is L2, then skeleton terminal 2-1 is passed through bending twice, is bent out in U Winding portion 2-1-1, middle section 2-1-2 and the external connection part 2-1-3 of type distribution, winding portion 2-1-1, middle section The spacing of 2-1-2 and external connection part 2-1-3 remain that L2 is constant, the winding portion 2-1-1 of skeleton terminal 2-1 and outside Coupling part 2-1-3 extending directions are identical；

After outlet box 1 is assembled with coil rack 2, external connection part 2-1-3 and internal coupling part 1-3-2 wickings are welded It connects, forms turning circuit.

In the present embodiment, the skeleton terminal 2-1 is provided with 5, and 5 skeleton terminals 2-1 is inserted into coil bone simultaneously It is neat to arrange on one wire in the terminal holding member 2-2 of frame 2, so as to the bending simultaneously of 5 needles.

As shown in Figure 11,12, before outlet box 1 and coil rack 2 assemble, it is additionally included in the winding portion 2-1-1 The step of upper coiling.

As shown in Figure 11,12, after coiling, the head of winding portion 2-1-1 is pushed into a sharp angle α, plays the work of loose ends With.

Particular embodiments described above, the technical issues of being solved to the utility model, technical solution and advantageous effect into Go further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and do not have to In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvements done Deng should be included within the scope of protection of this utility model.

Claims (13)

1. a kind of stepper motor, it is characterised in that：Including outlet box (1) and coil rack (2), the outlet box (1) includes Wire box main body (1-1) and the outlet box terminal (1-3) being fixedly connected on outlet box main body (1-1), the coil rack (2) there is skeleton terminal (2-1), the outlet box terminal (1-3) includes external connection part (1-3-1) and internal coupling part (1-3-2), the internal coupling part (1-3-2) of the outlet box terminal (1-3) is connect with external connection part (1-3-1) and edge Plane is dissipated along its symmetrical centre to both sides where external connection part (1-3-1), the external connection of outlet box terminal (1-3) Partly the spacing L1 of (1-3-1) is less than or equal to the spacing L2 of skeleton terminal (2-1), and the outlet box terminal (1-3) internally connects Socket part point (1-3-2) is directly welded to connect with skeleton terminal (2-1).

2. a kind of stepper motor according to claim 1, it is characterised in that：The skeleton terminal (2-1) is including first successively Winding portion (2-1-1), middle section (2-1-2) and the external connection part (2-1-3) that tail is connected；The outlet box terminal External connection part (2-1-3) of the internal coupling part (1-3-2) of (1-3) for skeleton terminal (2-1) is welded to connect, and is gone out The spacing L1 of the external connection part (1-3-1) of wire box terminal (1-3) is less than the winding portion (2-1-1) of skeleton terminal (2-1) Spacing L2.

3. a kind of stepper motor according to claim 1, it is characterised in that：The outlet box terminal (1-3) internally connects Partly the spacing of (1-3-2) is set as：Its with one end that the external connection part (1-3-1) of outlet box terminal is connect to skeleton One end of terminal (2-1) connection becomes larger.

4. a kind of stepper motor according to claim 2, it is characterised in that：Coil rack (2) further includes skeleton main body (2- 3), terminal holding member (2-2), the terminal holding member (2-2) are connected, and the end with skeleton main body (2-3) Sub- support member (2-2) is realized by the middle section (2-1-2) of fixed skeleton terminal (2-1) to skeleton terminal (2-1) It is fixed.

5. a kind of stepper motor according to claim 2, it is characterised in that：The winding portion of the skeleton terminal (2-1) (2-1-1) is identical with external connection part (2-1-3) extending direction.

6. a kind of stepper motor according to claim 2, it is characterised in that：The outlet box terminal (1-3) internally connects Socket part point (1-3-2) and the external connection part (2-1-3) of skeleton terminal (2-1) are connected to one by way of wicking welding It rises.

7. a kind of stepper motor according to claim 2, it is characterised in that：The outlet box (1) further includes wire outlet box cover (1-2), the wire outlet box cover (1-2) have the groove (1- for the internal coupling part (1-3-2) for accommodating outlet box terminal (1-3) 2-1), the wire outlet box cover (1-2) covers on internal coupling part (1-3-2) and is fixedly connected with outlet box main body (1-1), institute It states internal coupling part (13-2) and the weld of the external connection part (2-1-3) of skeleton terminal (2-1) is located at above-mentioned groove In (1-2-1).

8. a kind of stepper motor according to claim 7, it is characterised in that：The close skeleton end of the groove (1-2-1) The side of the winding portion (2-1-1) of son has the dividing wall (1-2-2) for tin sweat(ing) to be isolated.

9. a kind of stepper motor according to claim 8, it is characterised in that：Dividing wall (the 1- of the wire outlet box cover (1-2) It 2-2) is pressed on the middle section (2-1-2) of the skeleton terminal (2-1).

10. a kind of stepper motor according to claim 5, it is characterised in that：The winding portion (2-1-1) is for coiling One end relative to winding portion (2-1-1) the other end have one push sharp angle α.

11. a kind of stepper motor according to claim 1, it is characterised in that：The outside of the outlet box is to motor outer diameter The distance between for B, to the distance of motor center be A, B on the outside of outlet box：Ranging from the 0.25~0.29 of A.

12. a kind of stepper motor according to claim 11, it is characterised in that：The outside of the outlet box is to motor outer diameter The distance between B be 4.4mm, the distance A on the outside of the outlet box to motor center is 16.4mm.

13. a kind of stepper motor according to claim 4, it is characterised in that：The upper surface of the outlet box main body (1-1) Not higher than the upper surface of the coil rack (2) terminal holding member (2-2), realize that the outlet box terminal (1-3) is right with this The welding of the external connection part (2-1-3) of interior coupling part (1-3-2) and skeleton terminal (2-1) and the skeleton terminal (2- 1) tin of warding off of winding portion (2-1-1) is carried out at the same time.